diff --git a/extensions/openpower-pels/user_data_formats.hpp b/extensions/openpower-pels/user_data_formats.hpp
new file mode 100644
index 0000000..53cb5ee
--- /dev/null
+++ b/extensions/openpower-pels/user_data_formats.hpp
@@ -0,0 +1,19 @@
+#pragma once
+
+namespace openpower
+{
+namespace pels
+{
+
+enum class UserDataFormat
+{
+    json = 1
+};
+
+enum class UserDataFormatVersion
+{
+    json = 1
+};
+
+} // namespace pels
+} // namespace openpower